Sonoff Zigbee device ‘unavailable’ and recommendation for router for UK

[francisp (Francis)]

Better Blueprint to report when any battery device (Zigbee/Zwave etc) or Zigbee/Zwave SmartSwtich has gone offline

I found it not obvious enough on how to get notified when battery Zigbee / Zwave devices, or smartplugs, have fallen off the network… So, I made this blueprint that will report when any of your Zigbee/Zwave(Battery) devices falls off the network. Works with ZHA & Z2M. Works for any SmartPlugs / SmartSwitches also. You can easily get a notification to your phone, or alerts spoken to your Alexa/Google speaker etc, when any device has gone offline. This is an upgrade over my previous version - …